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Octopus Energy leads retail market growth, confirmed as UK’s largest electricity supplier by Ofgem

Constantine the pink octopus at a purple door with Octopus awards and logos around it

Octopus Energy was the only large energy supplier to increase its market share over the past year, new data from Ofgem reveals.

Octopus has gained more than 1.9 million (net) customers since Q1 2023, reaching a market share of 22% with 6.8 million households served by the company.

The company led the switching market in 2023, with more than 800,000 customers choosing to join from other suppliers – or one new customer per minute.


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If you are a customer, or a potential customer, our customer service team are available by email every day on hello@octopus.energy or by phone on 0808 164 1088.

If you are a journalist, call 02045308369, or email press@octoenergy.com

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